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JPS5567687A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5567687A
JPS5567687A JP14190378A JP14190378A JPS5567687A JP S5567687 A JPS5567687 A JP S5567687A JP 14190378 A JP14190378 A JP 14190378A JP 14190378 A JP14190378 A JP 14190378A JP S5567687 A JPS5567687 A JP S5567687A
Authority
JP
Japan
Prior art keywords
pointer
signal
stop watch
synthesized
normal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP14190378A
Other languages
Japanese (ja)
Other versions
JPS641753B2 (en
Inventor
Shuji Otawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP14190378A priority Critical patent/JPS5567687A/en
Publication of JPS5567687A publication Critical patent/JPS5567687A/en
Publication of JPS641753B2 publication Critical patent/JPS641753B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)

Abstract

PURPOSE: To keep unchanged the space than conventional watches, by detecting the position of pointer at normal pointer and stop watch usage by means of the counter, in the analog electronic watch with chronograph.
CONSTITUTION: The forward pulse once per one second is synthesized 54 with the signal frequency-dividing 52 the signal from the oscillation circuit 51 normally and the pointer is fed with normal speed by the motor 58. At the operation of stop watch, the forward signal of 10 pulses/one second is synthesized 54 and the pointer is fed in high speed. While this, the counter circuit 55 counts the signal of the frequency division circuit 52 to measure the usage time of the stop watch. Futher, at the end of the stop watch, the reverse signal of 32 pluses/second is synthesized 54 to constitute the display of normal time for the pointer by returning or advancing the pointers until normal time. Since the stop watch and the normal time display are made with one motor, the unit can be made small in size.
COPYRIGHT: (C)1980,JPO&Japio
JP14190378A 1978-11-17 1978-11-17 Electronic watch Granted JPS5567687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14190378A JPS5567687A (en) 1978-11-17 1978-11-17 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14190378A JPS5567687A (en) 1978-11-17 1978-11-17 Electronic watch

Publications (2)

Publication Number Publication Date
JPS5567687A true JPS5567687A (en) 1980-05-21
JPS641753B2 JPS641753B2 (en) 1989-01-12

Family

ID=15302835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14190378A Granted JPS5567687A (en) 1978-11-17 1978-11-17 Electronic watch

Country Status (1)

Country Link
JP (1) JPS5567687A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5940189A (en) * 1982-08-30 1984-03-05 Seiko Epson Corp Analog electronic clock with timer
JPS6183992A (en) * 1984-09-29 1986-04-28 Citizen Watch Co Ltd Electronic timepiece with chronograph

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5940189A (en) * 1982-08-30 1984-03-05 Seiko Epson Corp Analog electronic clock with timer
JPH0440677B2 (en) * 1982-08-30 1992-07-03 Seiko Epson Corp
JPS6183992A (en) * 1984-09-29 1986-04-28 Citizen Watch Co Ltd Electronic timepiece with chronograph
JPH0530236B2 (en) * 1984-09-29 1993-05-07 Citizen Watch Co Ltd

Also Published As

Publication number Publication date
JPS641753B2 (en) 1989-01-12

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